Isolation Cabinet with AllXS microphone positioning system. This XL version is pre-loaded with 2x 10" (or 2x 12") bass speakers. The XL is also used by Opeth (Martin Mendez) and Biffy Clyro (James Johnston)!
For all Pro AllXS models prior the new AllXS+ dynamount ready versions, there is an option to upgrade your Box of Doom with this upgrade kit. After modifying your BoD you are able to install a Dynamount X2-R micro.